Shelly i4 Gen3 is a compact scene controller for smart homes with 4 digital inputs, enabling up to 16 actions thanks to Multi‑click. It works without a hub, connects via Wi‑Fi/Bluetooth, supports MQTT and KNXnet/IP, and easily fits behind an existing wall switch for quick installation and convenient control of scenes and devices.
Shelly i4 Gen3 is a compact scene controller for smart homes with 4 digital inputs, enabling up to 16 actions thanks to Multi‑click. It works without a hub, connects via Wi‑Fi/Bluetooth, supports MQTT and KNXnet/IP, and easily fits behind an existing wall switch for quick installation and convenient control of scenes and devices.
Create and trigger your own scenes with a single tap. Shelly i4 Gen3 handles precise control of four independent inputs and, thanks to the Multi‑click feature, lets you assign up to 16 different actions (single/double/triple click and hold for each input). The modern ESP‑Shelly‑C38F processor with 8 MB flash ensures lightning‑fast response and reliable operation.
The device works without a central hub — configure everything in the Shelly Smart Control app over Wi‑Fi, and quickly add new devices via Bluetooth. For advanced integrations, MQTT, WebSocket, HTTPS, UDP, and TLS encryption with custom certificates are available, including KNXnet/IP for building automation.
- Easy hidden installation — compact dimensions to fit behind most wall switches.
- Scenes within reach — with a single press, turn off lights, lower blinds, or activate “Good night”.
- Stable connection — 2.4 GHz Wi‑Fi with a range of up to 50 m in open space.
- Safety and reliability — reinforced terminals, encrypted communication, internal temperature sensor.
